Machine for cleansing and greasing baking-pans.



PATENTED MAR. 7, 1905.

A. BERG 8: J. ,A. PRAY. MAGHINE FOR CLEANSING AND GREASING BAKING PANS.

APPLICATION FILED NOV. 29,1904.

3 SHEETS-SHBET 1.

WITNESSES: A w

PATENTED MAR. 7, 1905.

A. BERG & J. A. PRAY.

MACHINE FOR CLEANSING AND GRBASING BAKING PANS.

APPLIQATION FILED NOV. 29, L904.

3 SHEETS-SHEBT 2 lllll WlTNESSES- PATENTED MAR. 7, 1905.

A. BERG & J. A. PRAY. MACHINE FOR CLEANSING AND GREASING BAKING FANS.

APPLICATION FILED NOV. 29,1904.

3 SKEETS SHEET 3.

/ IN VEPSTO R S:

w m W?! ITNESSES:

No. 784,202. Patented March *2, 1905.

STATES ATE FFTQET ANDREW BERG AND JAMES ARTHUR FRAY, OF BRIDGEPOR'I,CONNECTI- CUT, ASSIGNORS "O GEORGE H. CLIFF AND CHARLES H. NV. L'l'l F,()F PHILADELPHIA, PE NNSYLVA N IA.

ill'lACl-HNE FOR CLEANSING AND GREASllNC-a BAKlNGWFANS.

fiPEGIFICATION forming part of Letter P n 784,202, dated March '7, 1905.

Application filed November 29. 1904. Serial No. 234.725.

"4/ wheels, two of which are mounted oneaeh of H Be it known that we,ANDREW Base and the shafts 6 and 7. J AMns ARTHUR FRAY, citizens of theUnited 10 designates endless carrying sprocket 5 States, residing in thecity of Bridgeport, chains which are in engagement with the said countyof Fairlield, State of Connecticut, have sprocket wheels 9. lldesignates a driving invented anew and useful Machine forCleansbandwheel secured upon one end of the shaft ing and Greasing Baking-Pans, ofwhich the 6. The band wheel is driven from any suitfollowing is aspecification. able source (not shown) by means of a belt, 55 Ourinvention relates to a machine or an and the rotation of the said wheelimparts ro- I0 apparatus for cleansing and greasing baking tation to theshaft 6, and the latter rotation pans, and its object is to providemeans for is transmitted to the shaft 7 by means of the applying greasein a vaporized state to the combined sprocket and carrying chains 10baking pans. which are in engagement with the sprocket 60 In theconstruction shown, means are diswheels upon the said shafts ii and 7. 5closed for conveying the baking pans through The n pper sections of thecombined sprocket the apparatus, the said apparatus being proandcarrying chains 10, intermediate the vided with mechanism located inadvance of sprocket wheels over which they travel, are thegreasingoroiling mechanism for the pursupported upon the small wheels15, as is 5 pose of cleansing and removing bread crumbs clearly shown inFigures 1 and .ll of the drawor other foreign substance from the saidpans. ings. V

After the pans have been cleansed, they ad- The sprocket chains 10 areprovided at in vance to the greasing mechanism and are tervals, as shownin Figures l and II, with greased ready to be used for baking purposes.lugs or projections 1b, which are adapted to 7 o have illustrated aconvenient embodiengage the rear edge of the baking pans 17 5 ment ofour invention, but it is to be underwhich rest upon and are carriedforward by stood that many variations and changes in the the saidchains.

construction may be made without departing In their transit through themachine, the from the spirit of our invention. baking pans are carriedthrough the cleans- 75 In the drawings forming a part of our speciingmechanism. consisting of a rotating brush 3 lication,- 20, constructedin any desirable manner, and

Figure l is a side elevation of the machine of any suitable material,the said brush beembodying our invention; ing mounted upon a rotatableshaft 21. jour- Figure 11 is a top plan view of the same; nalcd inbearings 22 at the upper end of up- 80 Figure H1 is a transverse sectionof a porright standards or supports 2 secured to the tion of the frameof the machine and of one side pieces 2:3 of the frame. Rotation of theportion of the con veyer, and also showing the cleanslng brush isoccasioned by means of the greasing mechanism in side elevation; anddriving pulley 24: and a driving belt (not Figure IV 1s a sectional viewtaken on the shown the said belt bein ada )ted to en a e 5 I 3 N i it?)81 4" line l.VlV 0t TUO'UIO Ill. a )ulley 2;) on the shaft (5.

n I b f n 4- Referring to the drawings, 1t Wlll be noted .1 he pans areheld up against the brush by that the machine is supported upon a framemeans of a pressure roller 26, which is rotaconsisting of the uprightsupports 1, horitably mounted at its opposite ends in movzontal sidepieces 2 and 3, and cross pieces 4-. able bearings, which bearings aresup iorted 9 6 and 7 designate rotatable shafts respectively at the endsof suitable cords, the said cords located at the opposite ends of thesupporting passing upward over the rollers 27 and havframe of themachine, the said shafts being ing secured at their other ends weights28. journaled in bearings 8. 9designatessprocket The cleansing brush islocated Within the enlarged end 29 of an exhaust pipe 30, the means forexhausting the air not being shown.

As the pans travel toward the left through themachine, as indicated inFigure I, the cleansing brush 20 rotates in the direction indicated bythe arrow in Figure I, in consequence of which the bread crumbs andother foreign substance upon the pans are loosened and disengagedtherefrom and are drawn outward through the exhaust pipe 30. In order tostill further facilitate the cleansing of the pans, we have provided apipe 35, which is in communication with a source (not shown) of airunder pressure, and by means of which a strong blast of air can bedirected against the said pans through small openings in the said pipe.

The mechanism thus far described is not novel with us, and we do notclaim the same separately. Our invention relates specifically toimprovements in the mechanism for greasing the pans, and the combinationof the same with the other parts of the apparatus. The greasingmechanism comprises a grease-holding receptacle 40, supported upon posts41, which are in turn supported upon brackets 42 provided on oppositesides of the appara tus. The receptacle extends transversely of thelength of the machine and is of a length substantially equal to thewidth of the pans to be greased.

The grease or oil receptacle is provided with hollow spaces 43 in itsside and end walls, which are adapted to receive steam or a similarheated substance (from a source not shown), the purpose being to keepthe oil in a fluid or liquid condition. It will be understood that ifthe receptacle is allowed to become cold, the oil or grease becomes moreor less firm and immobile and will not operate in the manner desired.

The lower side of the receptacle is closed by means of the strip 45extending from end to end of the receptacle, and the said strip isprovided with the plugs 46 at intervals, the said plugs respectivelybeing provided with perforations or passageways 47 and 48, to permit theescape of the grease or oil in a vaporized state. These plugs may bedesignated as vaporizing nozzles.

49 designates caps which have screw-threaded connection with the lowerend of the plugs 46. The ends of the said-plugs do not extend entirelyto the bottom of the said caps, in consequence of which there is more orless space left in the caps between the bottom thereof and the lowerends of the plugs. The lower end of each of the caps is provided with aperforation 50 for the escape of the oil or grease from the receptacle40.

The perforations 47 are in communication with the bottom portion of thereceptacle and the oil or grease passes from the said receptacle throughthe said perforations. The

upper end of the perforations 48 is closed by means of a tube or pipe 51which extends upwardly through the oil to a point somewhat above theupper level of the oil in the receptacle, as is clearly indicated inFigures III and IV of the drawings.

52 designates a pipe or tube communicating through the top of the greaseor oil receptacle with the interior of the said receptacle for thepurpose of conveying to said interior air or other suitable gaseoussubstance under pressure from a source of supply not shown.

It will be understood that the oil or grease should be permitted toescape from the receptacle 40 only when a pan is underneath the same.

In order to prevent the passage of oil or grease from the receptaclethrough the perforations 47 in the plugs 46. we have provided valves 55for the purposeof closing and opening the said perforations 47. Thesevalves also close and open the perforations 48. These valves extendthrough the plugs 46 and are provided with perforations (shown in FigureIV) which are adapted to be moved into and out of alinement with theperforations 47 and 48 in the plugs 46.

The first valve of the series, as shown in Figure III, is provided witha bell crank lever, one arm 56 of which extends or lies in asubstantially horizontal position, while the other arm 57 extendsdownwardly. The remaining valves of the series are provided with levers58. The levers 58 and the lever 57 are all connected at their lower endsto a rod or bar 59 extending across the machine, as clearly shown inFigure III.

WVhen a pan is underneath the grease or oil receptacle and the valves 55are open, the levers 57 and 58 occupy a position somewhat to one side ofvertical lines or planes through the respective valves, but when intheir normal position, the said levers occupy substantiallv verticallines or planes.

Vhen the valves 55 are in open position,

the oil or grease escapes through the perforations 47 in the plugs 46,the amount of the flow of oil or grease being increased by the pressureof air or other gaseous fluid on the top of the said oil or grease. Theair also escapes through the pipes 51 and the perforations 48, andbecomes mingled with the oil in the spaces between the bottoms of thecaps and the lower ends of the plugs 46. The opening and the closing ofthe valves is effected automatically by the passage of the pans throughthe machine. As the pans pass through the machine the opposite edgesthereof engage upon one side of the rotatable wheel 60 mounted upon astationary bracket 61. The other sides of the said pans engage arotatable wheel 62 mounted upon an arm or lever 68 carried upon andrigidly secured to a rotatable shaft 64 journaled in bearings 65 in thebrackets 42. The brackets 61 and 42 are illustrated as being secured toand supported upon the side pieces 3 of the frame of the machine orapparatus, but, obviously they may be supported in any other suitablemanner.

66 designates an arm or lever also secured to the shaft 64:, and inconnection with the arm or lever 63 constitutes a bell crank lever. 67designates a link connecting the outer end of the lever 66 with theouter end of the arm 56 of the bell crank lever secured to the [irst ofthe series of valves 55.

.ln order to hold the arm 63, lever 66, and the parts connected to thelatter, in position to close the valves 55 when there is no pan inengagement with the contact roller 62, we have provided the coiledcontractile spring 68 which is connected at one end to the frame of themachine and at its other end to one end of a projecting pin 69, theother end of which is connected to the arm 63.

The projecting pin 69, however, may be connected to the shaft 64 at anyother convenient and suitable point. \Vhen a pan is ')assing through themachine and is in contact with the rollers and 62, the latter is movedoutwardly against the pressure or tension of the spring 68 to open thevalve, and as soon as the panescapes from the machine, the said contactroller 62, the arm 66 and the parts connected thereto return under theinfluence of the said spring to their normal position to close thevalves and step further [low or escape of the oil from the receptacle.

l/Ve are aware of the application of George H. Cliff and ()harles H. NV.Cliff, iiled February 20, 1904, serial number 194,472, for

patent for a machine for cleansing and greasing baking pans, but we donot lay claim to any part of the subject-matter of the said application.

Our invention consists of an improvement in the means for applyinggrease or oil to the baking pans, and we hereby disclaim the broadsubject-matter disclosed and claimed in the aforesaid application ofGeorge H. and ()harles II. N. Clifl. v

Having thus described our invention, we claim--- 1. A machine orapparatus of the character described, comprising means for conveyingbaking or other pans through the same, and mechanism for occasioning thedischarge of oil, or grease upon the said pans in a vaporized state.

2. A machine or apparatus 01" the character described, comprising aconveyor for conveying baking or other pans through the said machine, amovable lever with which thesaid pans are adapted to contact as theytravel through the said machine, a grease or oil receptacle, and meansfor occasioning the discharge of the said grease or oil upon the saidpans in the form of a vapor, the operation of state upon said pans, thesaid device comprising an oil or grease chamber, vaporizing nozzlescommunicating with the said chamber, valves for closing and opening thesaid nozzles, and. means interposed between the said valves and the saidlever to occasion movement of the said valves to open and close the saidnozzles. V

at. A machine or apparatus of the character described, comprising aconveyor for conveying baking or other pans through the said machine, amovable bell crank lever with which said pans are adapted to contact asthey travel through the machine, a device for occasioning the dischargeof the grease or oil in a vaporized state upon the said pans, the saiddevice comprising a grease or oil receptacle, a plurality of plugsextendingthrough the bottom of the said receptacle, and the said plugshaving perforations which communicate with the said receptacle, valvesr'or closing and opening the said perforations. each of the said valvesbeing provided with an arm or lever which is secured thereto, a rod orbar connected to each of the said levers, and one of the said valvesbeing provided with a second arm or lover, a link connected at one endto the last mentioned arm or lever and at its other end to one of thearms of the said bellcrank lever, the movement of the latter beingoccasioned by the passage of the pans through the machine or apparatus.

5. A machine or ap iaratus of the character described, comprising aconveyor for conveying baking or other pans through the said machine,mcans for discharging grease or oil in a vaporized state upon said pans,the said means comprising a grease or oil chamber which is provided witha plurality of vaporizing nozzles, the said nozzles being provided withperforations, pipes communicating with one of said perforations andextending upwardly through the grease or oil and communicating with aportion of the chamber above the level of the said grease or oil, meansfor conveyingrair under pressure to the interior of the said chamber,valves for closing said perforations in said vaporizing nozzles, andmeans for opening and closing said valves, the operation ol the saidmeans being controlled by the pans as they pass through the saidmachine.

6. A machine or apparatus of the character described, comprising aconveyor for conveying baking or other pans through the said machine,means for discharging grease or oil in a vaporized state upon said pans,the said means comprising a grease or oil chamber which is provided witha plurality of vaporizing nozzles, each of the said nozzles beingprovided with a plurality of perforations, pipes communicating with oneset or series of the perforations in the said nozzles, the said pipesextending upwardly through the grease or oil and communicating with aportion of the chamber above the level of the said grease or oil, meansfor conveying air under pressure to the interior of the said chamber,valves for closing the perforations through the vaporizing nozzles,abell crank lever upon the frame of the machine, one of the arms ofwhich is adapted to contact with the pans as they travel through themachine, and connecting means between the other arm of the said leverand the said valves whereby movement of the said bell crank leveroccasions movement of the said valve to open and close the perforationsin the vaporizing nozzles.

7. In a machine of the character described, in combination, a rotatableshaft, a lever rigidly secured to the said shaft, means for holding thesaid lever in position to engage the edge of the baking pans as theypass through the said machine, a second lever secured to the said shaftat an angle to the first named lever, a grease or oil receptacle, plugsprovided in the bottom of the said receptacle, and each of the saidplugs having perforations extending therethrough, valves for opening andclosing the said perforations, arms connected to the said valves, a rodconnecting the said arms together, a second arm connected to one of thesaid valves, and a link connecting the last men" tioned arm with thesecond lever above named.

8. In a machine or apparatus for cleansing and greasing baking pans, incombination, a rotatable shaft, a lever rigidly secured to the saidshaft, a projecting rod secured upon said lever, a coiled springconnected to the said rod and to the frame of the machine for holdingthe said lever in position to be engaged by the baking pans as they passthrough the said machine, a second lever secured to the said rod at anangle to the first named lever, a grease or oil receptacle, plugsprovided in the bottom of the said receptacle, each of the said plugsbeing provided with perforations, pipes secured in the ends of one setor series of the said perforations, the said pipes extending up throughthe oil to points above its upper level, valves for opening and closingthe said perforations, the said valves being provided with arms, a rodconnecting the said arms, and one of the said valves being provided witha second arm, and a link connecting the last mentioned arm and thesecond lever above named.

9. In a machine for cleansing and greasing baking pans, in combination,a grease or oil containing receptacle provided with plugs arranged inone wall thereof, each plug being provided with perforations, a seriesof pipes secured in one set or series of the perforations in the saidplugs, the said pipes extending upwardly through the grease or oil inthe receptacle to a point above its level, the said pipes being adaptedto conduct air from the top of the said receptacle into and through thesaid perforations, caps secured upon the lower ends of the said plugs,each of the said caps being perforated, and each of the said capsinclosing a small space opposite the ends of the said plugs, valves forclosing the said perforations, and mechanism for opening and closing thesaid valves, the operation of the said mechanism being controlled by thepans as they pass through the said machine.

In testimony that we claim the foregoing as our invention we havehereunto signed our names this 23d day of November, A. D. 190%.

ANDREI/V BERG. JAMES ARTHUR FRAY.

In presence of- R. J. VVITTERWELL, HOWARD F. NE'ITLETON.

